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From 37f2f887df9f3c8428bd1776a5c0ca1d302b3ea1 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@gmail.com>
Date: Wed, 1 Feb 2012 10:50:05 +0800
Subject: [PATCH 31/56] gpio: Add missing spin_lock_init in gpio-ml-ioh driver
commit 7e3a70fb7bccada029c188c89bfbf3c0a63c1500 upstream.
This bug was introduced by commit 54be5663
"gpio-ml-ioh: Support interrupt function" which adds a spinlock to struct
ioh_gpio but never init the spinlock.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/gpio/gpio-ml-ioh.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 461958f..271fd49 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -448,6 +448,7 @@ static int __devinit ioh_gpio_probe(struct pci_dev *pdev,
chip->reg = chip->base;
chip->ch = i;
mutex_init(&chip->lock);
+ spin_lock_init(&chip->spinlock);
ioh_gpio_setup(chip, num_ports[i]);
ret = gpiochip_add(&chip->gpio);
if (ret) {
--
1.7.7.6
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